Multiquip STR46SPVG - Manual (Page 34)

STR46SPVG • RIDE-ON POWER TROWEL — OPERATION AND PARTS MANUAL — REV. #2 (07/09/07) — PAGE 34
STR46SPVG — MAINTENANCE
Often times, if the blades are incorrectly adjusted, they will
not be able to pitch flat. This occurs when the adjusting
bolts have been raised too high. Conversely, sometimes the
adjusting bolts are too low and the blades cannot be pitched
high enough for finishing operations.
Single Pitch Control
Blade pitch for one spider assembly is adjusted by rotating
the crank handle on the pitch control tower for that side of
the machine. Turn the crank as marked on its top surface to
increase or decrease blade ptich. Direction of rotation for
crank is clearly indicated on crank handle.
Since blade pitch for each spider assembly is controlled
individually, great care must be taken to keep blade pitch
equal on both sides of the machine. This is important to
maintain a consistent finish and to make the machine easier
to control.
To raise blades, turn crank clockwise. To flatten blades, turn
cranke counterclockwise.
Figure 31. Single Pitch Towers
Changing a Blade
It is recommended that all blades on the trowel be changed
at the
same time. If only one or some of the blades are
changed at one time, the machine will not finish concrete
consistently and the machine may wobble or bounce.
1. Place the machine on a flat, level surface. Adjust the
blade pitch control to make the blades as flat as
possible. Note the blade orientation on the trowel arm.
This is important for ride-on trowels as the two sets of
blades counter-rotate. Lift the machine up, placing
blocks under the main guard ring to support it.
2. Remove the bolts and lock washers on the trowel arm,
(Figure 32) and then remove the blade.
3. Scrape all concrete and debris from the trowel arm.
This is important to properly seat the new blade.
4. Install the new blade, maintaining the proper orientation
for direction of rotation.
5. Affix the bolts and lock washers.
6. Repeat steps 2-5 for all remaining blades.
NEVER allow concrete to
harden on the trowel or blades.
Immediately after each use
wash any concrete off the
trowel or blades with water, be
careful not to spray the water.
An old paint brush or broom
may help loosen any concrete
that has started to harden.
NOTE
Figure 32. Changing Blades